[INFO] updating cached repository https://github.com/diytronic/milcup
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2dbbefd880e3b51ec343acf28dd434b9b664e321
[INFO] testing diytronic/milcup against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdiytronic%2Fmilcup" "/workspace/builds/worker-10/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/diytronic/milcup on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/diytronic/milcup
[INFO] finished tweaking git repo https://github.com/diytronic/milcup
[INFO] tweaked toml for git repo https://github.com/diytronic/milcup written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/diytronic/milcup already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 91e61f146dba6fbb1a049846ad00dbac99d1d363651ab156acd419c1dba42870
[INFO] running `"docker" "start" "-a" "91e61f146dba6fbb1a049846ad00dbac99d1d363651ab156acd419c1dba42870"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling anyhow v1.0.28
[INFO] [stderr]    Compiling ihex v1.1.2
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling libudev v0.2.0
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.12
[INFO] [stderr]    Compiling serialport v3.3.0
[INFO] [stderr]    Compiling proc-macro-error v0.4.12
[INFO] [stderr]    Compiling structopt-derive v0.4.5
[INFO] [stderr]    Compiling structopt v0.3.12
[INFO] [stderr]    Compiling milcup v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused imports: `Error`, `anyhow`
[INFO] [stderr]  --> src/main.rs:8:31
[INFO] [stderr]   |
[INFO] [stderr] 8 | use anyhow::{Context, Result, Error, anyhow, bail};
[INFO] [stderr]   |                               ^^^^^  ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable call
[INFO] [stderr]   --> src/main.rs:68:14
[INFO] [stderr]    |
[INFO] [stderr] 68 |         0 => Err(bail!("There are no available COM ports found")),
[INFO] [stderr]    |              ^^^ ----------------------------------------------- any code following this expression is unreachable
[INFO] [stderr]    |              |
[INFO] [stderr]    |              unreachable call
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable call
[INFO] [stderr]   --> src/main.rs:72:20
[INFO] [stderr]    |
[INFO] [stderr] 72 |             return Err(bail!("{} COM ports found choose right one with --port key {}", n, names));
[INFO] [stderr]    |                    ^^^ ------------------------------------------------------------------------- any code following this expression is unreachable
[INFO] [stderr]    |                    |
[INFO] [stderr]    |                    unreachable call
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `err`
[INFO] [stderr]   --> src/firmware.rs:41:13
[INFO] [stderr]    |
[INFO] [stderr] 41 |     fn from(err : Error) -> std::io::Error {
[INFO] [stderr]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 50.47s
[INFO] running `"docker" "inspect" "91e61f146dba6fbb1a049846ad00dbac99d1d363651ab156acd419c1dba42870"`
[INFO] running `"docker" "rm" "-f" "91e61f146dba6fbb1a049846ad00dbac99d1d363651ab156acd419c1dba42870"`
[INFO] [stdout] 91e61f146dba6fbb1a049846ad00dbac99d1d363651ab156acd419c1dba42870
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 97e0d6cd716467c27e60fdf2e849c98d5d2ac31c03c266fcd53967b6ac6d9d4f
[INFO] running `"docker" "start" "-a" "97e0d6cd716467c27e60fdf2e849c98d5d2ac31c03c266fcd53967b6ac6d9d4f"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling milcup v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused imports: `Error`, `anyhow`
[INFO] [stderr]  --> src/main.rs:8:31
[INFO] [stderr]   |
[INFO] [stderr] 8 | use anyhow::{Context, Result, Error, anyhow, bail};
[INFO] [stderr]   |                               ^^^^^  ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable call
[INFO] [stderr]   --> src/main.rs:68:14
[INFO] [stderr]    |
[INFO] [stderr] 68 |         0 => Err(bail!("There are no available COM ports found")),
[INFO] [stderr]    |              ^^^ ----------------------------------------------- any code following this expression is unreachable
[INFO] [stderr]    |              |
[INFO] [stderr]    |              unreachable call
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable call
[INFO] [stderr]   --> src/main.rs:72:20
[INFO] [stderr]    |
[INFO] [stderr] 72 |             return Err(bail!("{} COM ports found choose right one with --port key {}", n, names));
[INFO] [stderr]    |                    ^^^ ------------------------------------------------------------------------- any code following this expression is unreachable
[INFO] [stderr]    |                    |
[INFO] [stderr]    |                    unreachable call
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `err`
[INFO] [stderr]   --> src/firmware.rs:41:13
[INFO] [stderr]    |
[INFO] [stderr] 41 |     fn from(err : Error) -> std::io::Error {
[INFO] [stderr]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.44s
[INFO] running `"docker" "inspect" "97e0d6cd716467c27e60fdf2e849c98d5d2ac31c03c266fcd53967b6ac6d9d4f"`
[INFO] running `"docker" "rm" "-f" "97e0d6cd716467c27e60fdf2e849c98d5d2ac31c03c266fcd53967b6ac6d9d4f"`
[INFO] [stdout] 97e0d6cd716467c27e60fdf2e849c98d5d2ac31c03c266fcd53967b6ac6d9d4f
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8447684e3f482f226508164ace0d8b87249be15ae9fcb9939970974ad5acc6e7
[INFO] running `"docker" "start" "-a" "8447684e3f482f226508164ace0d8b87249be15ae9fcb9939970974ad5acc6e7"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused imports: `Error`, `anyhow`
[INFO] [stderr]  --> src/main.rs:8:31
[INFO] [stderr]   |
[INFO] [stderr] 8 | use anyhow::{Context, Result, Error, anyhow, bail};
[INFO] [stderr]   |                               ^^^^^  ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable call
[INFO] [stderr]   --> src/main.rs:68:14
[INFO] [stderr]    |
[INFO] [stderr] 68 |         0 => Err(bail!("There are no available COM ports found")),
[INFO] [stderr]    |              ^^^ ----------------------------------------------- any code following this expression is unreachable
[INFO] [stderr]    |              |
[INFO] [stderr]    |              unreachable call
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable call
[INFO] [stderr]   --> src/main.rs:72:20
[INFO] [stderr]    |
[INFO] [stderr] 72 |             return Err(bail!("{} COM ports found choose right one with --port key {}", n, names));
[INFO] [stderr]    |                    ^^^ ------------------------------------------------------------------------- any code following this expression is unreachable
[INFO] [stderr]    |                    |
[INFO] [stderr]    |                    unreachable call
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `err`
[INFO] [stderr]   --> src/firmware.rs:41:13
[INFO] [stderr]    |
[INFO] [stderr] 41 |     fn from(err : Error) -> std::io::Error {
[INFO] [stderr]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.38s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/milcup-a0604078688aee86
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "8447684e3f482f226508164ace0d8b87249be15ae9fcb9939970974ad5acc6e7"`
[INFO] running `"docker" "rm" "-f" "8447684e3f482f226508164ace0d8b87249be15ae9fcb9939970974ad5acc6e7"`
[INFO] [stdout] 8447684e3f482f226508164ace0d8b87249be15ae9fcb9939970974ad5acc6e7